Synthesis of BaTiO_3 nanoparticle/poly(2-hydroxyethyl methacrylate) hybrid nanofibers via electrospinning

摘要

BaTiO_3 nanoparticle/poly(2-hydroxyethyl methacrylate) (PHEMA) hybrid nanofibers were fabricated from an in situ synthesized BaTiO_3 nanoparticle/polyrner hybrid by electrospinning. The bulk hybrid for nanofibers was synthesized through the in situ hydrolysis of Ba-Ti alkoxide modified with 2-vinyl-oxyethanol and subsequent copolymerization with HEMA monomer. 1R and ~(13)C NMR spectra showed the formation of polymer matrix. The molecular weights of BaTiO_3 nanoparticle/PHEMA hybrid for spinning were 1.3 × 10~5 for 20 equiv. PHEMA and 5.7 × 10~5 for 30 equiv. PHEMA. The crystallite size of BaTiO_3 particles in the hybrid was 4.5 nm according to the Scherrer equation. The diameter of BaTiO_3 nanoparticle/PHEMA hybrid nanofibers ranged from 500 nm to 1 μm. A field stress-strain curve was observed for the BaTiO_3 nanoparticle/PHEMA hybrid nanofiber.